Well-packer.



:GOLON L o. HEETER, OF BUTLER, PENNSYLVANIA.

WELL-PACER.

Specification of Letters Patent.

Patented Nov. 17, 1908.

Application filed January 25, 1907, Serial No. 354,046. Renewed April'l, 1908. Serial No. $25,795.

To all whom it my concern:

-Be it known that I, COLONEL C. HEETER, a

citizen of the United States, residing at Butwall operates inconjunction with an abutment'throu'gh which-the packer-tube is movorpressure.

able for expanding the packer, and-the primary object is to provideimproved means for settingthe anchor.

A further purpose is to provide a yielding support for the anchor whichmay give while the anchor is being' set and prevent inury thereto in theevent-of excessive strains In the accompanying drawing, Figure 1 is aView, partly in elevation and partly in section, of the improved packer,showing the position of the parts while being lowered in a well. Fig. 2is a longitudinally sectional view, showing the position of the partswhile setting the anchor, and 'Fig. 3 is a similar ongitudinally withinthe sleeve.

there y preventing view-of the packer when set.

Referring to the drawing-'2 designates the packer-tube or body having atits upper end the usual collar 3 for uniting with'casing 4, and beneaththe collar is the packer or rubber annulus 5. Loose on tube 2, at thelower end of annul'us 5, is a two-part abutment consisting of innersleeve 6, againstfwhich the'packerbears and which fits within an outersleeve .7, bein cdnnected thereto by coarse threads. 8. ube .2 may beformed with onor more-longitudinal slots 9 to re; ceive ins 10projecting from sleeve 6, where-'. by, w ile .said parts are heldagainst indeendent rotation, the tube is freelto move Sprin 11 carriedby outer sleeve 7 im inge the wel wall and preventsaid tube. romrotating. A shoulder 12, at the up r end ofsleeve 7 enga es pin 12projecting from sleeve 6,

the sleeves-from becoming screwed, tbget er so;tightl as to resistseparation when settin the pee er inmanner presentlyto be descri ed. Acollar 13 carried by the lower end of tube 2 forms a-stop for s ring 14,and resting on the latteris the annu ar slip-carrier 15 loose on thetube. Projecting upward from. the; carrier are vented-from rotating bysprings 11, the r0- tary movement results in the distention of thethread-connected two-partabutment, as shown-in Fig. 2, the immediateresult being the forcing downward of sleeve 7 thereby engaging thetapered lower end 7 thereof withslip's l7, and forcing the latteroutward into tight cont-actwith-the wall. If this expandingmovement iscarried too far, or if the rock-wall is extremely hard and unyielding,spring 14.- permits the slips to move a downward slightly under theexcessive pressure, thereby preventing the slips, sleeve 7 or otherparts of the packer from being injuredv by the undue strain. After thepacker-has been set in the manner described, and as shown in. Fig. 2,the support for the casing at the top of the well is removed, and theweight of the casing forces tube-2 downward,

thereby compressing the rubber annulus between collar 3 and the anchoredabutment and laterally expanding the packer and sealing the well, asshown in Fig. 3. The packer I may. be released by rotating the samethroughthe medium of the casing in direction reverse to-that in which itwas turned when being set, thereby contracting the twopart abutment bydrawing upward sleeve 7 and releasing slips' 17. T e. casing and tubing2 are then drawn upward, permitting the rubber to resume its normalshape, with the entire device free to be either raised or lowered, whenitmay be reset; at a 'difierent point by, repeating the above describedsetting operation, or removed from the well.

I claim 1. The combination of a tube, an expan-v sible packer thereon, alongitudinally extensible abutment for the .lower end of the" packer andthrough which the tube is adapt edto move, and an anchor beneath theabut ment and adaptedto be engaged and set by .the latter while beinglongitudinally extended.

2.'The combination of. a tube, an expansible packer thereon, alongitudinally extensible two-partabutment for the lower end of thepacker through which the tube-is movable, the abutment parts fitting onewithin the other andunited by screw-threads,liold- 'ing means adapted-toprevent the outer abutment part from rotating, and an anchor adapted tobe en aged and set by said outer part when the a utment is extendedlongitudinally by rotating its inner part.

3. The combination of a tube, an expansibl packer thereon, alongitudinally extenslbletwo-part abutment, sald parts. fitting onewithin the other-and united by screw-c threads, a longitudinally movableconnection between thetube and the'inner part of the abutment adapted toprevent the tube and said part from turning independently of each other,wall-engaging springs carried by .the outer abutment-part for preventingrotation of the latter, and an anchor adapted to be engaged and set bysaid outer part when the abutment is extended longitudinally by'rotating its inner part.

4. The combination of a tube, anexpansible packer thereon, an abutmentfor the lower end of the acker through which the tube is movable, t eabutment consisting of two sleeves movable one within the other andunited by screw-threads, a pin and'slot connection between the tube andinner sleeve to aflord the tube longitudinal movement through thesleeve, the outer sleeve having its lower end tapered means carried bythe outer sleeve for resisting rotation, and

. wedge-shaped slips movable on the tube and adapted to be engaged andexpanded by. the tapered lower end of the outer sleeve.

5. The'combination of a tube, an expansible packer thereon, twosleevesone within and threaded to the 'otller through which the tube ismovable, a connection between the tube and inner sleeve for causing saidparts to turn together, holding means for preventing turning of theouter sleeve, stop G. H. HEETER, JAMES O. CAMPBEL J

